Valve



April 1934- w. HOFFERBERTH 1,956,235

VALVE Filed Sept. 1, 1932 Elma/who'll is directed to the opening or interrupted portion, interrupted, but also serves to pick up and more '25 panying drawing in which the skirt, thus compressing the mixture flowing 85 tion comprises an improvement in the valve which used either on the type of engine shown in the 1 Patented Apr. 24, 1934 STATES er VALVE William Hofierberth, Baltimore, Md. Application September 1, 1932, Serial No. 631,403 2 Claims. (01. 123-188) FICE The invention relates to valves of the poppet includes a head 10 adapted to engage the valve type, and has particular reference to valves as seat D and a valve stem 11 carrying the head. used in internal combustion engines, and has for Depending from the head 10 and adjacent to its its principal object the provision of an improved outer edge is a skirt or a shroud 12 that wipes 5 construction of valve whereby the products of against the walls of the intake branch C and excombustion are directed through one side of the tends part way around the valve only, being invalve only so as to direct the charge of fuel imterrupted on one side thereof, the side nearest to mediately over the piston and thereby provide the engine cylinder A and piston B, so that the more power for the same quantity of the fuel. explosive mixture is directed immediately into 10 To this end the invention consists in providing the space between the piston B and the head E. a skirt dependent from the valve head adjacent The under side of the head 10 of the valve is proto its edge and having the skirt either provided vided with an inclined deflecting wall 13, being with an opening in one side thereof through inclined from the edge of the valve where the which the fuel or explosive charge escapes into skirt is interrupted, or the outlet portion, and

15 the cylinder, or the skirt is interrupted on one side inclines downwardly under the head 10 to the for the same purpose. lower edge of the skirt opposite to said outlet or The invention also includes an inclined deflecinterrupted portion. The deflecting wall 13 serves tor leading to the opening or interrupted portion not only to direct the explosive mixture to the whereby the explosive charge in the intake branch outlet portion between the end of the skirt where i said deflector also having a tendency to mor intimately mix the products of combustion enterthoroughly break up the explosive mixture and ing the engine cylinder so that a more thorough thereby contribute to a more thorough combuscombustion of the explosive mixture is secured,

tion of the explosive mixture, making starting making starting of the engine easier and reduc- 5 easier as well as adding power to the explosion, ing the amount of carbon formed by the explosion. 8c and reducing the amount of carbon formed on the It will be understood that the skirt 12 by wipcylinder head and piston. ing the walls of the intake branch C prevents the The invention will be described in detail hereexplosive mixture escaping except through the inafter and will be found illustrated in the accomoutlet formed between the interrupted ends of Figure 1 is an elevational view of the iminto the cylinder, which also contributes to a proved valve shown in position in a conventional more thorough mixture of the products in the internal combustion engine, the engine being combustible mixture, and also reduces the amount shown fragmentarily and in section, or" the mixture flowing into the engine, as obvi- 35 Figure 2 is a side view in elevation on an enously the space under the head over the skirt larged scale of the Valve looking at it from a dif- 12 will provide a dead gas space, and to the exferent position from that shown in Figure 1, tent of the dead gas in the space reducing the Figure 3 is a transverse sectional view on a plane quantity of live combustible mixture admitted to indicated by the line 3-3 of Figure 2, and the engine cylinder.

Figure 4 is a sectional detail on a plane indi- In Figures 5 and 6 is shown a modified concall d by the 11118 of Figure struction in which the valve head 10 is provided Figure 5 is a i nal view of a fragment of with a skirt 20 extending entirely around the an internal Combustion engine o ng a mOd valve and having an opening 21 therein for the fied construction of valve, the valve being shown outlet of the gas or the explosive mixture. The

45 partly broken away and in section, and modified construction also has a deflector 22 simi- Figure 6 is a fragmentary view of the valve lar in construction to the deflector 13 and pershown in Figure 5. forming the same function.

In the drawing similar reference characters are In addition to the advantages heretofore set used to designate corresponding parts in all the out of less consumption of gas, the more thorough 50 views. breaking up of the explosive mixture, the placing IQS InFieur s 1 a 5 are shown a o v ntional inof the charge of gas directly over the piston, it

ternal c mb engine including a Cy inder A, will be apparent that the above described valve a piston B, an intake branch C, and a valve seat D, may be substituted for the valves now in use with E indicating the head of the engine. The inveninternal combustion engines, and that it may be drawing, that is, the valve and head, or it may be used on engines employing overhead valves.

A further advantage of the skirted valve structure is that the engine timing is more regular and gas knocks are practically dispensed with because the gas is placed in one spot and burned more thoroughly and faster and furthermore as less gas is consumed the engine does not heat to an excess temperature.

In installing the valve in valve-in-head or overhead valve motors, the shroud or skirt will be positioned opposite to the gas intake so as to divert the fiow of the explosive mixture in en tering the cylinder thus more thoroughly mixing the explosive mixture and also putting the mix ture directly over the piston.

What is claimed is: x

1. In a valve having a head and stem, a depending skirt on the head arranged adjacent to the edge of said head and provided with an outlet on one side only of said head and stem, and a deflecting wall within the skirt and inclined downwardly from the outlet to the lower edge of the skirt intermediate of the ends of said outlet.

2. In combination with the intake conduit of an internal combustion engine, a valve seat at the end thereof, a valve stem operating in said conduit and having a head to engage said valve seat, and a skirt depending from said head and having an outlet on one side of said valve and seat, said skirt engaging the wall of said conduit and closing the opening between the valve and seat except through the outlet aforesaid, and a defleeting Wall located within the skirt and inclined downwardly from the valve head to the lower edge of the skirt intermediate of the ends thereof.

WILLIAM HOFFERBERTH. 

